Across
- 2. of operations The results of applying an operation to given numbers (e.g., adding two whole numbers results in a number greater than or equal to the original numbers).
- 3. A two-dimensional figure whose beginning and ending points meet, such that the plane in which the figure lies is divided into two parts---the part inside the figure and the part outside the figure (e.g., circles, squares, rectangles)
- 4. The horizontal and vertical number lines used in a rectangular graph or coordinate grid system.
- 6. property For any real numbers a, b, and x, x(a + b) = ax + bx.
- 8. A number or expression that divides exactly another number
- 9. expressions Expressions that have the same value but are represented in a different format using the properties of numbers
- 10. An increase in size in all directions by a uniform amount.
- 13. The number (0), that is, adding 0 does not change a number's vale (e.g., 5 + 0 = 5).
- 14. Numbers that correspond to points on a graph in the form (x , y).
- 15. A mathematical sentence (e.g., 2x = 10) that equates one expression (2x) to another expression (10).
- 16. value A number's distance from zero (0) on a number line. The absolute value of both 4, written |4|, and negative 4, written |-4|, equals 4.
- 17. The way in which three or more numbers are grouped for addition or multiplication does not change their sum or product (e.g., 2 + 3 = 3 +2 or     4 x 7 = 7 x 4).
- 19. A mathematical expression that contains variables and describes a pattern or relationship.
- 21. Obtaining the measure of an object by using measuring devices, either standard devices of the customary or metric systems, or nonstandard devices such as a paper clip or pencil.
- 22. The inside region of a two-dimensional figure measured in square units (e.g., a rectangle with sides of 4 units by 6 units contains 24 square units or has an area 24 square units)
- 23. The amount of space that can be filled. Both capacity and volume are used to measure three-dimensional spaces; how ever, capacity usually refers to fluids, whereas volume usually refers to solids.
- 24. A zigzag on the line of the x- or y-axis in a line or a bar graph indicating that the data being displayed does not include all of the values that exist on the number line being used. Also called a Squiggle.
- 25. The shape made by two rays extending from a common end point, the vertex. Measures of angles are described using the degree system.
- 26. or system A network of evenly spaced, parallel horizontal and vertical lines especially designed for locating points, displaying data, or drawing maps.
Down
- 1. A line segment from any point on the circle passing through the center to another point on the circle.
- 3. The order in which two numbers are added or multiplied does not change their sum or product (e.g., 2 + 3 = 3 +2 or 4 x 7 = 7 x 4).
- 4. A mathematical sentence in which two expressions are connected by an equality
- 5. Two angles, the sum of which is exactly 90 degrees.
- 7. The line or plane upon which a figure is thought of as a resting.
- 11. An angle with a measure of less than 90 degrees.
- 12. property A number and its additive inverse have a sum of zero (0) (e.g., in the equation 3 + -3 = 0, 3 and -3 are additive inverses of each other).
- 17. A mathematical sequence in which two expressions are connected by an equality symbol.
- 18. The perimeter of a circle is called its circumference.
- 20. The use of rounding and/or other strategies to determine a reasonably accurate approximation, without calculating an exact answer.
- 21. displays Different ways of displaying data in tables, charts, or graphs, including pictographs, circle graphs, single, double, or triple bar and line graphs, histograms, stem-and-leaf plots, and scatter plots.